adams



m5 Model.) 3 81155558411555 '1.

W. S. ADAMS.

OAR TRUCK. 7 No. 588,858. Patnted'May 7, 1895.

WITNESSES: INVENTO W w; Maj/(u) A TTORNEY 3 Sheets-Sheet 2.

(No Model.)

W..S'. ADAM-S.

GAR TRUCK.

Patented Maj 7,1895.-

NOJ 588,858.

Low

ATTORNEY (No Model.) 3 SheetsSheet 3.

W. s. ADAMS,

GAR TRUCK.

No. 538,858. Patented May 7, 1895.

' WITNESSES:

WALTER S. ADAMS, OF PHILADELPHIA, PENNSYLVANIA,

ASSIGNOR TO JOHN A. BRILL, OF SAME PLACE.

CAR-TRUCK.

SPECIFICATION forming part Of Letters Patent NO. 538,853, dated. May 7, 1895.

Application filed February 16, 1895. Serial No. 538,612- (No model.)

To all whom it may concern:

Be it known that I, WALTER S. ADAMS, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Oar-Trucks, of which the following is a specification.

One object of this invention is to provide improved means for resiliently supporting a car body upon a car truck, and a further object isto improve certain details of construction of the axle box frame.

The invention consists in an axle box frame carrying a semi-elliptical spring, having its concave surface facing downwardly, and spring posts sustained by said spring between its ends, said posts being guided by the upper chord of the axle box frame, and devices for connecting the car body with said posts.

The invention also consists in the novel details of improvement and the combinations of parts that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming part hereof, wherein Figure 1 is a side elevation of a car-truck embodying my improvements, showing a portion ofa car-body mounted thereon. Fig. 2is a plan view of the car-truck. Fig. 3 is an enlarged cross-section illustrating my improve ments on the plane of theline 3 3 in Fig. 1; and Fig. 4 is an enlarged detail, partly in section, ofthe spring-posts and the bearing.

In the accompanying drawings, in which similar letters of reference indicate corresponding parts in the several views, the letter A indicates an axle box frame. B are its axle box yokes; O, theaxle boxes, and D the wheel, which may all be of suitable or desired construction.

In the example shown, the axlebox frame A has an upper chord A and a bottom chord A forming the side bars between the yokes B and defining a space E, in which part of my improvements may be located.

At F is asemi-elliptical spring, the leaves of which are shown bound together by a strap F said spring being located beneath the upper chord A and within the space E. The endsof the spring F are so supported that they maymove under the bending influence of a superposed car body.

In the example shown the ends of the spring F are supported by links G, which are pivotally carried by the axle box frame. By preference the links G are arranged in pairs, the ends of the spring F beinglocated between the links. .Thelinks G are supported at their upper ends by pivots a carried by the chord A and at their lower ends saidlinks are con- 6o nected by pivot bars I), upon which the ends of the spring F rest, being preferably curved around said pivots. By this arrangement the spring F is pivotallysupported, so as to move endwise under the Weight and motions of the car body, the links G turning on their pivots for this purpose.

Upon the spring F, at its central portion, is mounted a saddle H, adapted to have a slight rocking motion thereon, said saddle being shown composed of a top plate H having depending side webs H forming a channel to receive the spring F.

At I, I are spring posts resting on the saddle H,and movably connected therewith. The posts I have reduced ends which passthrough the top of the saddle and form shoulders 01 that rest on the'saddle H, and may be held in position by cotter pins e passing through the reduced'ends of the posts I beneath the Sad dle H. The apertures in the saddle H may be enlarged to give freedom of movement to the posts I.

The posts I are journaled in the upper chord A of the axle box frame, bushings J being preferably provided for said posts, the chord A being enlarged to receive said bushings. Provision is made for allowing the posts I to have a slightlongitudinal orlateral movement relatively to the chord A either by making enlarged openings in said chord for said bushings, or by making the bushings elastic, or else by allowing play between the posts and the bushings, so as to permit slight movement of said posts under the rocking movements of the car body.

The car body is to be supported on the posts I, I by devices which may be of ordinary or suitable construction. In the drawings the posts I are shown connected by a casting K, which forms the truck bearing, and has recesses f, in which the upper ends of the posts I may be pivoted. (See Fig. 4.)

The casting K has a top recess 9 in which is located a friction plate h. L is a guide plate secured to the under side of the side sill I of a car body. (Not shown.) The plate M is curved on an are derived from the pivotal center on (Fig. 2) of the .car truck, and from the plate L depends a web L following the curve of the plate L, and to the plate L is secured a rub plate, which bears on the friction plate h.

N is a roller pivotally carried in a recess j in the casting K to bear against the depending plate L to limit and regulate the lateral movement of the car body relatively to the truck, and to properly guide the truck in its pivotal movements beneaththeear body.

The chord A posts 1,1 and saddle H form the pedestals for the truck bearing.

Oneof the cross barsA of the truck or axle box frame A is shown provided with a casting 0 having a curved slot 0 which works a frictionrroller P loosely journaled on a draw bar R. The draw bar R depends from the carbody and may be strengthened by a brace R extending from said bar. to a support R carried by the car body. This draw bar makes a drawing connection between the car body and the axle box frame, which acts in all positions of the truck relatively to the car body. This I do not claim herein, My improved axle box frame is constructed as follows: From the jokes B, B extend bars A having integral and inwardly turned ends A provided with recesses A the outer ends of which are closed. The cross bar A is T shaped, its fiat web lying in said recesses. The parts A A B, A and A are preferably made in a single piece of metahas by forging, and the parts A and A may be fastened together by rivets or bolts. The cross bar A is restrained from transverse movement by the closed ends of the recesses A By means of my improvementsthe car body is resiliently supported at the center of the axle box frame, so as to have free up and down,or rocking motion,and it will be understood that the devices described will be located on both sides of the frame A.

I do not limit my invention to the precise details of construction shown and described, as they may be varied without departing from the spirit of my invention.

1. The combination of an axle box frame, with a semi-elliptical spring supported thereby, spring posts supported directly upon said spring between its ends, guides fortheposts above the spring, and means for connecting a car body with said posts, substantially as described. p

2. The combination of an axle box frame having aside bar, with asemi elliptieal spring supported at its ends on said frame and below said bar nd having its concave surface facing downwardly, spring posts on said spring and guided by said side bar, andin'eans for con meeting said posts with a car body, substantially as described.

3. The combination of an axle box frame having a side bar, with a semi-elliptical spring pivotally carried by said frame, a saddle on said spring, posts supported by said saddle, and means for supporting a car body on said posts, substantially as described.

t. The combination of a truck frame, with a semi-elliptical spring carried by said frame,

a saddle having a movable connection with.

said spring, posts supported by said saddle, and a bearing having a movable connection with said posts, substantially as described.

5. The combination of a truck frame having a top bar, with a semi-elliptical spring carried by said frame, a movable saddle on the spring, posts supported by the saddle and guided by the top bar, and a bearin g movably connected with said posts, 'sub'stan tially as described.

6. The combinationof an axle box frame having a side bar, with a semi-elliptical spring,

links pivotally carried by said frame and supporting the ends of said spring, a saddle on said spring, posts supported by said saddle and guided by said side bar, and means for supporting a car bodyon said posts, substantially as described.

7. The combination of an axle box frame havingasidebar,\vithasemi-ellipticalspring, links arranged in pairs and pivotally suspended from saidframe, pivots Z2 connecting said links in pairs, the ends of said spring being supported by said pivots, a saddle on a said spring, posts supported by said saddle and guided in said side bar, and means for supporting a car body on said posts, substantially as described. I

8. The combination of an axle box frame having a side bar, with a semi-elliptical spring movably supported by said frame, a saddle mounted on said spring and consisting of a having depending webs forming a said spring, posts having reduced ends received in apertures in said saddle, said posts being guided in said side bar, and means for supporting a car body on said posts, substantially as described.

9. An axle box frame having side bars and yokes, extensions A from said yokes provided with integral and inwardly extending ends A having recesses A and cross bars A located in said recesses, substantially as described.

10. An axle box frame having side bars and yokes, extensions A from said yokes provided with integral and inwardly extending ends A having recesses A the outer ends of which are closedl and T shaped cross bars A having their fiat ivebsor sides located in said top plate channel to receive 'recess'es and fastened therein, the closed ends restraining transverse movement of the cross bars, substantially as described.

Signed at Philadelphia, in the county of Philadelphia and Statejof Pennsylvania, this 21st day of Jenner-3 .1895.

WALTER S. ADAMS. Witnesses: R. S. REED,

R. W. BROADBENT.

LOO 

